Can i die from placental abruption if i ignore it?

Yes: You dont want to ignore placenta abruption. It can kill your baby and kill you eventually due to complications related to bleeding.

Yes, baby also: Placental separation (abruption) can decrease blood flow to your infant, compromising it's health. Mild cases can be watched and surveillance provided for your baby. Severe cases can end up with massive bleeding, fetal loss (death), or maternal hemorrhage and its complications which include bleeding to death. Your OB can best tell you your personal risks and what you need to do to stay safe.